Record Details
Aggregate Timer and Lock
Washington State University Libraries
| Field | Value |
|---|---|
| Title | Aggregate Timer and Lock |
| Description | Automatic timer and locking device for controlling the operations of the mixers. The 4-yard mixers cannot discharge a batch of concrete until they have run the required time (usually 2 minutes) as set on the timer for each mixer. Should the operator attempt to dump the mixer before the prescribed time has elapsed, he would find that the controls have been automatically locked. |
| Relation |
Part of Western Waters Digital Library: http://harvester.lib.utah.edu/wwdl/ Messrs. Johnson and Erickson selected photographs from photographers Pomeroy, Robinson, and Russell. |
| Creator | United States. Bureau of Reclamation |
| Subject | Concrete mixers--Washington (State)--Grand Coulee Dam; Aggregate processing plants--Washington (State)--Columbia River Valley; Brett gravel pit (Wash.)--Cement--Grand Coulee Dam |
| Coverage | Excavation United States--Washington (State)--Grant County--Grand Coulee Dam site, Grand Coulee Dam (Wash.) |
| Type | photographs |
| Identifier | 40b7v7p142.jpg http://kaga.wsulibs.wsu.edu/u?/banks,2767 |
| Date | 12/28/1938 2008 |
| Publisher | Manuscripts, Archives, and Special Collections, Washington State University Libraries: http://www.wsulibs.wsu.edu/holland/masc/masc.htm |
| Source | Columbia Basin Project History (Vol. VII, Page 142)-Cage 40, Box 7 of the Frank Arthur Banks Papers, 1913-1957: http://www.wsulibs.wsu.edu/Holland/masc/finders/cg40.htm |
| Rights | To order a reproduction please see: http://www.wsulibs.wsu.edu/holland/masc/policies.htm; or contact Washington State University Libraries, Manuscripts, Archives, and Special Collections: (509) 335-6691. For permission to publish please contact Washington State University Libraries, Manuscripts, Archives, and Special Collections: (509) 335-6691. |
| Format | Original photographic prints were scanned at 24 bit 3000 pixels by the long side for master TIFF files on an Epson Expression 10,000 XL scanner. While 24 bit 150 PPI JPEG also created and added to the CONTENTdm database at the WSU Libraries. |
| Language | English |
